
Unset
Unset
Unset
Once the download is complete, extract the contents of the downloaded file using the
'tar' command. Optionally, you can rename the extracted folder to 'hadoop' for easier
configuration:
tar -xvzf hadoop-3.3.6.tar.gz
mv hadoop-3.3.6 hadoop
Next, you need to set up environment variables for Java and Hadoop in your system.
Open the '~/.bashrc' file in your preferred text editor. If you're using 'nano,' you
can paste code with 'Ctrl+Shift+V,' save with 'Ctrl+X,' 'Ctrl+Y,' and hit 'Enter':
nano ~/.bashrc
Append the following lines to the file:
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
export HADOOP_HOME=/home/hadoop/hadoop
export HADOOP_INSTALL=$HADOOP_HOME
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export HADOOP_YARN_HOME=$HADOOP_HOME
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export PATH=$PATH:$HADOOP_HOME/sbin:$HADOOP_HOME/bin
export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib/native"